Big Sandy, TN Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Big Sandy, TN in one place.
A chance of rain showers between 8am and 11am, then showers and thunderstorms likely. Partly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Heat index values as high as 95. West wind 0 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Big Sandy, TN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 18, 2026 12:43 AM EDT.
The active forecast window currently covers Jul 18 to Jul 24, 2026 for Big Sandy, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 24, 2026
- Latest sync
- Jul 18, 2026 12:43 AM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Big Sandy
Tuesday looks like the warmest upcoming period in Big Sandy at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Saturday at about 0 to 10 mph W.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 18, 2026 12:43 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- MRX
- Radar station
- KMRX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 11pm, then showers and thunderstorms likely. Partly cloudy, with a low around 70. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 11am, then showers and thunderstorms. Partly sunny, with a high near 86. West wind around 5 mph. Chance of precipitation is 80%.
Showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Northwest wind 0 to 5 mph. Chance of precipitation is 80%.
A slight chance of rain showers between 8am and 11am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89. Southwest wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70. South wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 64. Chance of precipitation is 70%.
Mostly sunny, with a high near 84.
Mostly clear, with a low around 64.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Showers And Thunderstorms Likely
|
88°F |
0 to 10 mph
W
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
70°F |
5 to 10 mph
SW
|
|
Sunday
Jul 19
|
Showers And Thunderstorms
|
86°F |
5 mph
W
|
|
Sunday Night
Jul 19
|
Showers And Thunderstorms then Partly Cloudy
|
69°F |
0 to 5 mph
NW
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
70°F |
0 to 5 mph
S
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
SW
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
SW
|
|
Wednesday
Jul 22
|
Showers And Thunderstorms Likely
|
86°F |
5 to 10 mph
W
|
|
Wednesday Night
Jul 22
|
Showers And Thunderstorms Likely
|
64°F |
0 to 10 mph
NW
|
|
Thursday
Jul 23
|
Mostly Sunny
|
84°F |
0 to 5 mph
N
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
64°F |
0 to 5 mph
NE
|
|
Friday
Jul 24
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Big Sandy.